Today's Message Index:
----------------------
1. 09:56 AM - Prop pitch engine out (RiteAngle3@aol.com)
2. 01:05 PM - Re: dead stick landings revisited (Boyd Braem)
3. 01:48 PM - 2 blade Hartzell for sale (Tom Martin)
4. 02:17 PM - dead stick landings revisited (Mlfred@aol.com)
5. 03:11 PM - Re: dead stick landings revisited (Boyd Braem)
6. 08:21 PM - (no subject) (Winnick645@cs.com)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Prop pitch engine out |
--> Rocket-List message posted by: RiteAngle3@aol.com
In a message dated 12/15/03 11:57:52 PM Pacific Standard Time,
rocket-list-digest@matronics.com writes:
I HAVEN'T DONE IT YET BUT I HAVE HEARD FROM VERY REALIABLE SOURCES IT IS
BETTER TO STOP THE PROP THAN HAVE THAT BIG PANCAKE BRAKE ON!!
>>>>True Statement for sure, the Fairchild F-27 went to flat pitch to slow
down on the runway! Verify what YOUR prop does with no oil pressure prior to
making any hard decisions, the mfg is the best, most reliable answer> CYA,
no one else will!
Elbie
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: dead stick landings revisited |
--> Rocket-List message posted by: Boyd Braem <bcbraem@comcast.net>
I understand your message, but in a RV or Rocket, how do you stop the
prop??? I've been flying (RV-Super 6) since 1998 and when I go to idle
or intentionally cut the engine off--the prop does not stop--unless you
pull the nose up and go really slow--and then you start going down,
tail first)--not quite the ideal landing situation.
If you have a solution, I would be happy to hear it. I've heard some
pilots say that if you come in gear up, you stop the prop so it's
horizontal (2-blade) so you don't bend it up, but how do you do that?
Most of my time is in jets, so that spinning thing up front sometimes
confuses me.
Boyd.
do not archive
On Monday, December 15, 2003, at 10:59 PM, Harry Paine wrote:
> --> Rocket-List message posted by: Harry Paine <hpaine@earthlink.net>
>
> Okay Okay spins pins F4's smores F100'S Bunions!!
>
> Lets hear about rockets and engine out adventures!
>
> It is a real eye opener when yoou pull the throttle all the way back
> and
> leave it there till you reach the runway, I challenge all
> you listers with rockets to try that and see what a boat anchor is
> like!!
>
> 266HP
>
> Hmmm NOBODY STEPPED FORWARD WHO HAVE HAD A FULL ROCKET ENGINE OUT!!
>
> I KNOW FOR A FACT THERE ARE SOME LURKERS OUT THERE!
>
> ADDITIONALLY THOSE WHO TALKED ABOUT COARSE & FINE PITCH DON'T REALIZE
> ON
> THE HARTZELL
> TWO BLADE THAT MOST OF US HAVE GOES INTO FLAT PITCH WITH NO OIL
> PRESSURE ON
> IT IE ENGINE TU!
> GO AHEAD ASK THE HARTZELL BOYS & SEE WHAT THEY SAY!!
>
> I HAVEN'T DONE IT YET BUT I HAVE HEARD FROM VERY REALIABLE SOURCES IT
> IS
> BETTER TO STOP THE PROP THAN HAVE THAT BIG PANCAKE BRAKE ON!!
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 2 blade Hartzell for sale |
--> Rocket-List message posted by: "Tom Martin" <fairlea@execulink.com>
I have a Hartzell two blade prop for sale, app. 210 hours TT. It comes
complete with a polished aluminium factory spinner for $6000 US. It is the
recommended two blade for the rocket series and had the D twist blades.
Governors also available at extra cost.
contact me off list email fairlea@execulink.com
Tom Martin
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | dead stick landings revisited |
--> Rocket-List message posted by: Mlfred@aol.com
In a message dated 12/16/2003 3:06:29 PM Central Standard Time,
bcbraem@comcast.net writes:
I understand your message, but in a RV or Rocket, how do you stop the
prop???
It MIGHT stop if you pull it to low RPM after moving the mixture lever to
ICO...but if the engine is dead due to zero oil pressure, which would keep you
from controlling the prop, likely it's seized too (prop not spinning)...not a
pretty picture for sure. On the positive side, I hear there is less drag in this
condition.
If it's fuel exhaustion, you'll still have prop control, and moving the blue
lever/knob in the proper direction might do the trick.
FYI: the MT 3 blade *with counterweights* weighs the same as a Hartzell 2
blade: about 55LBS. The 2 are interchangeable with no airframe/cowl mods.
Caveat: The counterweighted version uses an opposite-acting governor:oil
pressure to decrease pitch, so it isn't an exact bolt-on replacement. The
non-counterweighted style MT *can* be operated on the same gov that would control
a
std Hartzell 2 blade (this MT weighs about 4LBS less), making a change to one of
these types a true bolt-on replacement.
Maybe a bit more than you asked about?
Carry on!
Mark
Team Rocket LP
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: dead stick landings revisited |
--> Rocket-List message posted by: Boyd Braem <bcbraem@comcast.net>
N0, No--that's what this List is all about--transferring information.
If the engine is "dead", that's different from an engine-idle practice.
You do have to have oil pressure to move the blades.
Damnit, Mark, you know too much, but I love your contributions--and,
your airplanes--write a book, or something.
Boyd
On Tuesday, December 16, 2003, at 05:17 PM, Mlfred@aol.com wrote:
> --> Rocket-List message posted by: Mlfred@aol.com
>
> In a message dated 12/16/2003 3:06:29 PM Central Standard Time,
> bcbraem@comcast.net writes:
> I understand your message, but in a RV or Rocket, how do you stop the
> prop???
> It MIGHT stop if you pull it to low RPM after moving the mixture lever
> to
> ICO...but if the engine is dead due to zero oil pressure, which would
> keep you
> from controlling the prop, likely it's seized too (prop not
> spinning)...not a
> pretty picture for sure. On the positive side, I hear there is less
> drag in this
> condition.
>
> If it's fuel exhaustion, you'll still have prop control, and moving
> the blue
> lever/knob in the proper direction might do the trick.
>
> FYI: the MT 3 blade *with counterweights* weighs the same as a
> Hartzell 2
> blade: about 55LBS. The 2 are interchangeable with no airframe/cowl
> mods.
> Caveat: The counterweighted version uses an opposite-acting
> governor:oil
> pressure to decrease pitch, so it isn't an exact bolt-on replacement.
> The
> non-counterweighted style MT *can* be operated on the same gov that
> would control a
> std Hartzell 2 blade (this MT weighs about 4LBS less), making a change
> to one of
> these types a true bolt-on replacement.
>
> Maybe a bit more than you asked about?
>
> Carry on!
> Mark
> Team Rocket LP
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Rocket-List message posted by: Winnick645@cs.com
I experienced an oil pressure loss 12/13/03 after rolling out of
approximately 15 seconds of inverted flight. The aircraft is an F1 Rocket with
a Hartzell
2 blade and is equipped with a Christen inverted system. The first indication
of a problem (as someone on the list indicated) was a surge in RPM about 5
seconds after rolling upright. A check of the VM 1000 showed an oil pressure
drop to 5 PSI. I pulled the power to idle and to keep the prop from
overspeeding and expected oil pressure to return, unfortunately, it did not.
Fortunately, I was practicing inverted flight 5000 ft.
agl in an aerobatic practice area about 5 miles from an airport. I kept the
power at idle (in my mind, partial power is better than none so I never
thought about shutting down to "save the engine") and headed straight for the
airport. The good news is, I landed safely at the airport the bad news is the engine
was knocking badly and the oil pressure was 0 PSI at shut down. Engine tear
down is next, I have a few ideas of what the failure was but if anyone has had
a similar experience or has some ideas of what may have caused the sustained
oil pressure drop when returning to normal flight I would love to hear them.
REWinnick@CS.com
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|